{"id":"CVE-2021-22807","aliases":["EUVD-2021-9942","GHSA-hgrg-c42g-vhwp"],"status":"published","title":"A CWE-787: Out-of-bounds Write vulnerability exists that could cause arbitrary code execution...","description":"A CWE-787: Out-of-bounds Write vulnerability exists that could cause arbitrary code execution when a malicious *.gd1 configuration file is loaded into the GUIcon tool. Affected Product: Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00814,"percentile":0.57277,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2022-01-28T19:09:42Z","modified":"2026-06-17T03:37:49Z","products":[{"vendor":"schneider-electric","product":"guicon"}],"references":[{"url":"https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-313-07","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22807"},{"url":"https://github.com/advisories/GHSA-hgrg-c42g-vhwp"}],"sources":{"cve":[{"id":"CVE-2021-22807","description":"A CWE-787: Out-of-bounds Write vulnerability exists that could cause arbitrary code execution when a malicious *.gd1 configuration file is loaded into the GUIcon tool. Affected Product: Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior","status":"published","published":"2022-01-28T19:09:42Z","modified":"2024-08-03T18:51:07.471Z","updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9942","description":"A CWE-787: Out-of-bounds Write vulnerability exists that could cause arbitrary code execution when a malicious *.gd1 configuration file is loaded into the GUIcon tool. Affected Product: Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior","status":"published","published":"2022-01-28T19:09:42Z","modified":"2024-08-03T18:51:07Z","updated_at":"2026-11-03T03:25:01.154097Z"}],"ghsa":[{"id":"GHSA-hgrg-c42g-vhwp","title":"A CWE-787: Out-of-bounds Write vulnerability exists that could cause arbitrary code execution...","description":"A CWE-787: Out-of-bounds Write vulnerability exists that could cause arbitrary code execution when a malicious *.gd1 configuration file is loaded into the GUIcon tool. Affected Product: Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior","status":"published","published":"2022-01-29T00:00:45Z","modified":"2023-02-03T05:05:26Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:44.391187Z"}],"nvd":[{"id":"CVE-2021-22807","description":"A CWE-787: Out-of-bounds Write vulnerability exists that could cause arbitrary code execution when a malicious *.gd1 configuration file is loaded into the GUIcon tool. Affected Product: Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior","status":"published","published":"2022-01-28T20:15:09.82Z","modified":"2026-06-17T03:37:49.397Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:04.178977Z"}]}}